[Bug tree-optimization/122478] [16 Regression] Recent match.pd change breaks gimple checking

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122478

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |riscv x86_64

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note you can reproduce the ICE on x86_64 with `-O3 -march=skylake-avx512
-fno-vect-cost-model`.

This is because x86_64 with avx512 also uses unsigned:1 for the mask.